Rosy Blue

Rosy Blue Rosy Blue is a global leader in the trading of rough diamonds, manufacturing and distribution of pol

24/09/2026

Behind every finished stone is a choreography of skill, precision, patience, and trust.
Before a diamond reveals its brilliance, it passes through countless stages of craftsmanship, from sourcing and sorting to cutting, polishing, and final refinement. Each step demands a different mastery, and each decision shapes the stone’s final expression of light.

What appears singular is, in truth, deeply collective, guided by the many hands that shape its journey with care and intention.
Only through this collective pursuit of excellence does a diamond become everything it was meant to be.

23/09/2026

Before it reflects light, a diamond reflects time.

Its story begins deep within the Earth, billions of years before the present day. Long before landscapes took shape, before history was recorded, before human hands could discover it.
Formed slowly by nature’s forces, it carries within it a journey measured not in years, but in geological ages.

To trace a diamond is to look beyond its brilliance and return to its origin. To follow its path from the depths of the Earth to the moment it reaches us.

And perhaps that is what makes a diamond truly extraordinary. Not simply the way it shines, but the journey it has taken to get there.


Where brilliance finds its audience.Join Rosy Blue at the Hong Kong Convention & Exhibition Centre as we present a curat...
15/09/2026

Where brilliance finds its audience.

Join Rosy Blue at the Hong Kong Convention & Exhibition Centre as we present a curated selection of exceptional diamonds and fine jewellery.

Meet our team, discover our latest collections and explore the craftsmanship behind every creation.

📍 Hall 1B | Booth 622

📅 16–20 September 2026

We look forward to welcoming you.

The journey of every remarkable jewel begins with a remarkable diamond.This September, Rosy Blue returns to AsiaWorld-Ex...
10/09/2026

The journey of every remarkable jewel begins with a remarkable diamond.

This September, Rosy Blue returns to AsiaWorld-Expo, Hong Kong. Visit us to discover our latest selection of natural diamonds and meet the team behind one of the industry's most trusted names.

📍 Hall 5 | Booth 5H28
📅 14–18 September 2026
See you there.

25/08/2026

Every polished diamond begins in its natural form.

From rough stone to finished diamond, every stage of its journey is guided by precision, insight, and care. Advanced technology allows us to better understand the unique characteristics of each stone, while responsible traceability brings transparency and confidence to its journey from source to polished diamond.

At Rosy Blue, technology enhances what experience has always made possible: recognising the individuality of every diamond and respecting it throughout its transformation.

21/08/2026

As a step cut, the baguette isn't defined by brilliance, but by purity.
Its long, clean facets create subtle flashes of light, revealing precision, symmetry and clarity rather than dazzling sparkle.

You will find these special long baguettes in the world's most iconic high jewellery pieces, quietly enhancing the beauty of every design.

What sets them apart is their delicacy. One tiny misstep is enough to chip or break the stone. Few cuts demand such extraordinary precision, both in the polishing of the stone itself and in the hands that set it in gold.

04/08/2026

We asked a few of our colleagues: Why do you work in the diamond industry? The answers were different, but one thing stood out: passion.

Doing what you love is what brings real fulfilment every single day. For many of us, it started with a feeling: because I love it. No overthinking, just a natural connection.

And then came the discovery, the complexity behind the sparkle, the craftsmanship, the stories hidden in every stone. That’s when it became something more than just a job.

A shared passion that keeps growing. 💎

29/07/2026

Not all yellow diamonds are created equal. 💛

Sahil Mehta, our Senior Manager Solitaire Diamond Operations, walks us through the colour grades that set these stones apart.

The GIA grades fancy-colour diamonds on a scale of colour intensity, ranging from Fancy Light and Fancy to Fancy Intense and Fancy Vivid. The deeper and more saturated the colour, the rarer the stone.

Yet, a grading report can only tell part of the story. While it defines the key colour characteristics through a well-established framework, the true colour of a fancy-colour diamond can only be appreciated with your own eyes.

Every rough diamond carries a unique story waiting to unfold, shaped by nature, revealed through expertise, and transfor...
20/07/2026

Every rough diamond carries a unique story waiting to unfold, shaped by nature, revealed through expertise, and transformed through craftsmanship.⁠
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At Rosy Blue, we carefully source exceptional rough stones through our long-standing trusted partnerships and our deep industry expertise, ensuring each diamond’s true potential can be brought to life. From rough to polished, every step is guided by quality, responsibility, and an uncompromising eye for excellence.

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Dinsdag 09:00 - 18:00
Woensdag 09:00 - 18:00
Donderdag 09:00 - 18:00
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